What 2 things did Walter Sutton propose?
1. Chromosome Theory- Genes are located on chromosomes, each gene occupies a specific place (locus) on a chromosome.
2. A gene may exist in several forms (alleles) but each chromosome has just one allele.
What is significant about genes on the same chromosome?
They are said to be linked meaning they are inherited together and do not undergo independent assortment
What was Morgan's experiment?
He crossed purebred gray normal wing flies with pure bred black small wing flies. In the F1 generation, all offspring were gray with normal wings. When he crossed the F1 with homozygous recessive, he found that 41.5% were gray normal, 41.5% were black small, 8.5% were black normal, and 8.5% were gray small.
What did Morgan conclude?
The gene for body color and the gene for wing size were linked.
What is the combination of sex chromosomes for females?
What is the combination of sex chromosomes for males?